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Operation experiences at the MBT Maresme, the latest wet anaerobic digestion plant for MSW built in Spain

The MBT Maresme is the latest wet anaerobic digestion plant for the Organic Fraction from Municipal Solid Waste (MOR -Materia Orgánica Residual), that has been built in Spain, in countercurrent to the observed development towards MBT plants with only composting technology. In the present paper a short presentation of the MBT Maresme is given before the operation experiences during the start-up phase and the guarantee tests are discussed. Despite the challenge the operation of this facility under aggravating circumstances implied, the achieved performance and clearly advantageous energetic balance confirm the integration of a digestion step in MBT plants as a valid and valuable concept.

The history of MBT-AD Plants in Spain as in Europe is a quite painful story. In the last 14 years, since 2001, 30 AD plants were built in the country, of which 4 were never commissioned, 4 are forsaken and 22 are currently in operation. In total, 20 facilities went through a reengineering. As presented in past editions of the Waste to Resources conference, two of them were successfully refurbished by BTA International GmbH and Biotedc Sistemi s.r.l.: the methanization line at Ecoparc I in Barcelona and the methanization line at the Ecoparque Burgos. In total, less than 10 facilities are currently operating at nominal production. Due to this two tendencies can be observed: towards composting as biological step instead of anaerobic digestion followed by composting and away from the treatment of MOR (Materia Orgánica Residual), which is residual waste. Being the main reasons for this difficulties that the AD facilities in Spain where designed as a solution to, the residual waste fraction of selective collection which means that we will have the lowest quality of Organic fraction either for composting or AD. In Counter current to these tendencies, the MBT Maresme was designed to treat organic fraction from MOR through wet anaerobic digestion. This article presents the Technology implemented in MBT Maresme and discusses the experiences during the commissioning and first year of Operation.

Copyright:	© Wasteconsult International
Quelle:	Waste-to-Resources 2015 (Mai 2015)
Seiten:	9
Preis:	€ 0,00
Autor:	Martin Ernst Ottokarl Muck Dipl. Ing. Stephan H. Schulte Jacobo Moreno Lampaya
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